MESON Chess Problem Database

Problem Display
PID: 278322 (1B4R1/1p1B4/1P2P3/Rp1p1PPp/4kpbr/N2p1p1n/2NQ1P2/4K3 w - - 0 1)

Ouellet, Charles

Pat a Mat, 2017

1B4R1/1p1B4/1P2P3/Rp1p1PPp/4kpbr/N2p1p1n/2NQ1P2/4K3

#2

13 + 11

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Qxd3#
    • 1...Sg1
      • 2.Qxf4#
    • 1...Sxf2
      • 2.Qxf4#
    • 1...Sxg5
      • 2.Qxf4#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qxd3#
      • 1...Kxf5
        • 2.Qxd3#
      • 1...Sxf2
        • 2.Qxf4#
      • 1...Kd4!
    • 1.Bxb5?
      • threat
        • 2.Bxd3#
        • 2.Qxd3#
      • 1...Sxf2
        • 2.Qxf4#
      • 1...dxc2
        • 2.Qd3#
      • 1...d4
        • 2.Bxd3#
      • 1...Kxf5!
    • 1.Rxb5?
      • 1...Kxf5
        • 2.Qxd3#
      • 1...Sxf2
        • 2.Qxf4#
      • 1...Sxg5
        • 2.Qxf4#
      • 1...dxc2
        • 2.Qxd5#
      • 1...Sg1
        • 2.Qxf4#
      • 1...d4
        • 2.Re5#
      • 1...Bxf5!
    • 1.Qe3+?
      • 1...Kxf5
        • 2.Sd4#
        • 2.Qxd3#
        • 2.Qe5#
        • 2.e7#
      • 1...fxe3!
    • 1.Qb4+?
      • 1...Kxf5
        • 2.e7#
      • 1...d4!
  • Keys
    • 1.Sxb5!
      • 1...Kxf5
        • 2.Qxd3#
      • 1...Bxf5
        • 2.Sc3#
      • 1...Sxf2
        • 2.Qxf4#
      • 1...Sxg5
        • 2.Qxf4#
      • 1...dxc2
        • 2.Qxc2#
      • 1...d4
        • 2.Sd6#
      • 1...Sg1
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);N_GUARD,S_FLIGHT,XP(G)::QAB(C),XP(a)
    • S(c);N_GUARD::QAR1(C),XP(e)
    • S(c);N_GUARD,XP(D)::QAR1(C),XP(e)
    • S(c);N_GUARD,XP(H)::QAR1(C),XP(e)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(C),XP(a)
      • Vars
        • K(d);S_FLIGHT,XP(G)::QAB(C),XP(a)
        • S(c);N_GUARD,XP(D)::QAR1(C),XP(e)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(a)
    • Try
      • B(K);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);N_GUARD,XP(D)::QAR1(C),XP(e)
        • P(a);XS(B)::QAB1(C)
        • P(i);::B(K),XP(a)
      • Refutation
        • K(d);S_FLIGHT,XP(G)
    • Try
      • R(F);XP(h)
      • Vars
        • K(d);N_GUARD,P_SPINP(i),S_FLIGHT,XP(G)::QAB(C),XP(a)
        • S(c);N_GUARD,XP(D)::QAR1(C),XP(e)
        • S(c);N_GUARD,XP(H)::QAR1(C),XP(e)
        • P(a);OGATE,XS(B)::QAB1(C),XP(i)
        • S(c);N_GUARD::QAR1(C),XP(e)
        • P(i);OGATE::R1(F)
      • Refutation
        • B(f);XP(G)
    • Try
      • Q(C);CHECK
      • Refutation
        • P(e);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);S_CUTP(i),S_FLIGHT,XP(G)::B(K)+P(J)
      • Refutation
        • P(i);P_SPINP(i)
  • Actual
    • S(E);XP(h)
    • Vars
      • K(d);N_GUARD,S_FLIGHT,XP(G)::QAB(C),XP(a)
      • B(f);SBLOCK,XP(G)::S(E)
      • S(c);N_GUARD,XP(D)::QAR1(C),XP(e)
      • S(c);N_GUARD,XP(H)::QAR1(C),XP(e)
      • P(a);OGATE,XS(B)::QAB(C),XP(a)
      • P(i);::S(E)
      • S(c);N_GUARD::QAR1(C),XP(e)
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